Gang die-press.



H. C. H. WALSH.

GANG DIE PRESS.

APPucmoN man June. 191s.

Patented Dec. 17, 1918.

I8 SHEETS-SHEET l.

miv@

H. C. H. WALSH.

GANG DIE PRESS.

APPLlcAlon mso wus. 19:5.

Patented Dec. 17, 1918.

I8 SHEETS-Shin 2.

H. C. H. WALSH.

GANG DIE PRESS.

APPucA'non men JULY e. ma.

Patented Dec.17,191s.

I8 SHEETS-SHEET H. C. H. WALSH.

GANG DIE PRESS.

APPLICATION man JULY 6. Isls.

Patented Dec. 17. 1918.

I8 SHEETS-SHEEI 4.

H. C. H. WALSH.

GANG DIE PRESS.

APPucATmN min JuLYe. 1915.

1,288,3E. Patented m0111918.

I8 SHEETS-SHEET 5 54a 5'! Z SSY Mew. R

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ilu? w Y I. ==mr mmm H. C. H. WALSH.

GANG DIE PRESS.

APPucATxoN man JULY 6. 1915.

Patented Dec. 17, 1918.

I8 SHEETS-SHEET I.

H. C. H. WALSH.

GANG DIE PRESS.

APPLICATION f|LD1uLYs.1915.

Patented Dec. 17, 1918.

I8 SHEETS- SHEET 8.

H. c. H. WALSH.' GANG DIE PRESS.

APPLICATIDN FILED JULY 6. 1915.

Patented Dec. 17, 1918.

' I8 SHEETS-SHEET 9. l

H. C. H. WALSH.

GANG DIE PRESS.

APPLICATION FILEDJULYG. 1915.

Patented Dec. 17, 1918.

IB SHEETS-SHE` l0.

' H. C. H. WALSH.

GANG DIE PRESS.

H my? H. C. H. WALSH.

GANG DIE PRESS.

APucATloN FILED :un 1915. L28316. Patented Dec. 17,1918.

IH SHEETS-SHEEI I3.

H. C. H. WALSH.

GANG DIE PRESS.

APPLICATION FILED 1uLv6.xs|s.

1,28l6. Patented Dec. 17, 1918.

.I8 SHEETS-SEEN N.

H. C. H. WALSH.

GANG DIE PRESS.

APPLlcAnuu man 1uLY6.1915.

I8 SHEETS-SHEET l5.

Patented B60111918.

H. C. H. WALSH.

GANG DIE PRESS.

1,288,316 APPLICATION man lune. |915. Patented Deo' 17 1918.

1s SHEETS-sneed le.

H. C. H. WALSH.

GANG DIE PRESS.

APPLICATmN min 1uLY6. |915.

Patented Dec. 17, 1918 IB SHEETS-SHEET Il j@ l i s E i I ,I a f I l i lI l I? ff( 1k ai 3 .i if? @1 E' f FV. l/M

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C. H. 'W'ALSH, 0F CHECAGO, ILLNOS, ASSIGNGR T0 CONTINENTAL CAN COM- FNY,LNG., 0F SYRACUSE EFW YORK, A CGRPGRATIGE 0F NEW 'YORK'.

GANG DIE-PRESS.

Specification of Letters Patent.

Patented Dee. 1W, 19H8.

Application filed .uy 6, 1915. Serial No. 38,315.

To all 107mm z'r' may concern:

it known that l, HARRY C. H. WALSH, a citizen of the United States,residing at tlhicago, in the county of Cook, State of lliinois, haveinvented certain new and useful .improvements in Gang Die-Fresses, ofwhich the following is a description, reference being had to theaccompanying drawing, and to the figures of reference marked thereon.

The invention relates to new and useful improvements in die presses, andmore partieularly to a die press for cutting can ends from sheet metal.v

An object of the invention is to provide a gang die press for cuttingand forming articles with means for receiving and automatically feedingthe sheet step by step to the dies.

A. further object of the invention is to provide a die press of theabove character with means for justifying the initial position of thesheet so as to insure the idle dies escaping the sheet.

Another object of the invention is to provide means for justifying thefinal positioning of the sheet so as to insure that the idle dies onthis operation shall escape the sheet.

A further object of the invention is to provide a machine of the abovecharacter,

wherein caps or the like may be cut from the waste material of the sheetor some other preparing operation performed on thesheet prior to thepresenting of the same to the gang die press.

A further object of the invention is to provide a mechanism of the abovecharacter with means for trimming the sheet preparatory to the operationof the gang die press thereon.

A further object of the invention is to provide a device of the abovecharacter, wherein the sheets are in horizontal position when operatedupon by the cap cutting means and in vertical position when operatedupon by the end cutting and forming means, said sheet; when passing fromone operating means to the other being progressively curved transverselyfor removing the buckles from the sheet. A

These and other objects will in part be obvious and will in part behereinaftermore fully described.

ln the drawings which show by way of illustration one embodiment of theinvention Figure 1 is a side elevation of a combined machine embodyingmy improvements;

Fig. 2 is a sectional view on the line 2 2 of Fig. l;

Fig. 2tl is a sectional view through the die press for cutting the caps.

Fig. 3 is al view partly in section and partly in end elevation, on theline 3 3 of Fig. l;

Fig. 4 is a sectional view on the line 1 -4 of Fig. l;

Fig. 5 is a view, similar to Fig. 4, but showing only the pressers fortemporarilyv holding the sheet during the punching 'operation.

Fig. 6 is a sectional view on the line 6 6 of Fig. 5;

Fig. 7 is a sectional view on the line 7 7 of Fig. 5, showing the meansfor frictionally engaging thesheet as it is fed to the dies;

Fig. 8 is a sectional view on the line 8 8 of Fig. 5, showing the end ofone of the pressers and the means which coperate therewith;

Fig. 9 is a detail, partly in section and partly in side elevation,showing a modified form of means for operatingthe pressers;

Fig. 10 is a plan view of the same;

y Fig. 11 is a view showing the supporting beds for the dies, the diesand the justifying means for initially positioning the sheet and alsothe sheet in dotted lines;

Fig. 12 is a sectional view on the line 1.2 12 of Fig. 11; Y

Fig. 13 is a detail showing a portion of the movable head for thepunches and the operating cam rod for the justifying fingers;

Fig. 14 is an enlarged view similar to Fig. 11 of one of the justifyingfingers;

Fig. l5 is a detail showing the supporting bed and the dies carriedthereby and also the justifying means for the final positioning of thesheet;

`F ig. 16 is a sectional view on the line 16 16 of Fig. 15;

Fig. 17 is an enlarged detail of one of the justifying Iingers and theAimmediate 0perating mechanism therefor;

Fig. 18 is a top plan view showing the operating lever for thejustifying finger;

Fig. 19 is a detail, showing in front View a supporting slide andjustifying finger carried thereby;

Fig. 20 is a View showing the supporting bed and the dies mountedtherein and also showing the intermittent feed operating mechanism forpresenting the sheet step by step to the gang of dies;

Fig. 2l is a sectional viewon the line 21-21 Fig. 20, showing thereciprocating slide and the feeding mechanism carried thereby; also thetripping stops, these parts being in side elevation;

Fig. 22 is a similar view on 22-22 of Fig. 2o;

Fig. 23 is a sectional View 23-23 of Fig. 20;

Fig. 24 lis a sectional View n n. of Fig. 20;

Fig. 25 is a sectional view on 25-25 of Fig. 20;

Fig. 26 is a sectional view afa- 2c of Fig. 20;

' Fig. 27 is a perspective view of the holding dog for the feed gripper;

Fig. 28 is a side view of the feed gripper;

Fig. 29 is a plan view of the gripper plate which coperates With thegripper nger;

Fig. 30 is a sectional View on the line 30--30 of Fig. 3l, showing theguiding plates and the edge guide for directing the sheet of metal fromhorizontal position to a vertical position Where it is presented to thedie press;

Fig. 3l is a. sectional view on the line 31-31 of Fig. 30;

Fig. 32 is a View more or less diagrammatical, showing the feeding-inarm, the justifying arm for initially positioning the sheet, the bed ofthe press and the punches for cutting the ends and forming the same;

Fig. 33 is a diagrammatic view, showing the supporting `bed and the diescarried thereby and the position of the sheet for the initial cuttingofthe same;

Fig. 34 is a similar View, showing the sheet in its final position forcutting; l

Fig. 35 is a side vTeW of adie press for cutting and forming can ends,showing a modified form of means for feeding the sheets to the step bystep feeding mechanism of the die press;

Fig. 36 is an end elevation showing a. portion of the feeding meansabove referred to;

Fig.` 37 is an enlarged view of a section of the feed chain. showing indotted lines a portion of a sheet being fed thereto;

Fig. 3S is a sectional View on the line 3,8--38 of Fig. 37;

Fig. 39 is a sectional view on the line 39-39 of Fig. 37;

Fig. 40 is a top plan view, showing the feeding-in chains ofthe-modified form of the invention and the oscillating feeding-in arms;-

the line on the line on the line the line on the line assente Figs41 isla. sectional View on the line Y anni of Fig. 4o;

Fig. 42 is an enlarged detail of the rear end of the feeding-in arm,showing the yielding finger for engaging the sheet in side view:

Fig. 43 is a plan view of the same;

Fig. 44 is a section on the line 4%44 of Fig. 42;

Fig. 45 is a plan view of the chute for catching the finished ends andthe separating rack for the scrap metal;

Fig. 46 is a sectional view on the line 46-46 of Fig. 47; and

Fig. 47 is a sectional view on the line rr-i7 of Fig. 45.

rlthe invention consists generally in providing a gang die press forcutting and forming can ends or the like Which constitutes one operatingstation and means whereby the Waste material may be cut and formed intobottle caps, nail caps or the like and the sheet trimmed or otherwiseoperated upon Which constitutes another operatingv station. This lastnamed station is primarily an operating station for preparing the vsheetfor the die press, so that When the die press is operated upon thesheet, all the available metal has been utilized. The sheets are fed tothis preparing station preferably from a stack by a pneumatic feederWhich lifts the sheets one at a time from the stack and places the sameon a reciprocating feeding mechanism, Which is so timed as to presentthe sheets to the cap-forming mechanism and trimming mechanism and thendeliver the sheets to feeding-in arms which convey the same t0 the gangdie press. The sheets pass horizontally through the preparing stationand vertically through the die press or second operating station. As thesheets are delivered from the horizontal feeding mechanism to theintermittent vertical feeding mechanism of the die press they are curvedtransversely, which tends to take any buckles or bends out of the sheet.

The sheet is presented to the gang die press by oscillating arms. Thesearms may initially present the sheet for the first cutting operation,but I prefer to use in conjunction With said feeding-in arms justifyingfingers which engage the lower edge of the sheet and accurately positionthe same so that the idle dies will pass the edge of the sheet Withoutstriking the same. These justifying fingers are of especial utility inconjunction With sheets Which vary slightly in length. The sheets arefed to the gang dies by a step-by-step feeding mechanism. The length offeed is determined by fixed adjustable stops and not by the length ofstroke of the slides which carry the feeding fingers. Therefore,theposition of the sheet may be accurately determined. Coperating Withthe feeding' mechanism are presser fingers

